DATA SHEET SKY67100-396LF: 1.2 to 3.0 GHz High Linearity, Active Bias Low-Noise Amplifier Applications GSM, CDMA, WCDMA, and TD-SCDMA cellular infrastructure Ultra low-noise systems RF_OUT/VDD RF_IN FEEDBACK Features VIN Miniature DFN (8-pin, 2 x 2 mm) package (MSL1 @ 260 C per JEDEC J-STD-020) Skyworks Green™ products are compliant with all applicable legislation and are halogen-free. For additional information, refer to Skyworks Definition of Green™, document number SQ04-0074. N/C 1 8 N/C RFIN 2 7 RFOUT/VDD RFGND 3 6 N/C VIN 4 5 FEEDBACK S1943 Figure 2. SKY67100-396LF Pinout – 8-Pin DFN (Top View) Active Bias RFGND Ultra Low Noise Figure: 0.71 dB @ 1.95 GHz Excellent input return loss > 20 dB High OIP3 performance: +34 dBm @ 1.95 GHz Adjustable supply current and gain Temperature and process-stable active bias S1942 Figure 1. SKY67100-396LF Block Diagram Description The SKY67100-396LF is a GaAs, pHEMT Low-Noise Amplifier (LNA) with an active bias and high linearity performance. The advanced GaAs pHEMT enhancement mode process provides excellent return loss, low noise, and high linearity performance. The internal active bias circuitry provides stable performance over temperature and process variation. The device offers the ability to externally adjust supply current and gain. Supply voltage is applied to the RFOUT/VDD pin through an RF choke inductor. Pin 4 (VIN) should be connected to RFOUT/VDD through an external resistor to control the supply current. The RFIN and RFOUT/VDD pins should be DC blocked to ensure proper operation. Pin 5 (FEEDBACK) is connected through an RC network to externally adjust the gain of the device without affecting the Noise Figure (NF) of the LNA. The SKY67100-396LF operates in the frequency range of 1.2 to 3.0 GHz with proper tuning. For lower frequency operation, the pin-compatible SKY67101-396LF should be used. The LNA is manufactured in a compact, 2 x 2 mm, 8-pin Dual Flat No-Lead (DFN) package. A functional block diagram is shown in Figure 1. The pin configuration and package are shown in Figure 2. Signal pin assignments and functional pin descriptions are provided in Table 1. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201265I • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • March 6, 2014 1 DATA SHEET • SKY67100-396LF: HIGH LINEARITY, ACTIVE BIAS LNA Table 1. SKY67100-396LF Signal Descriptions Pin Name Description Pin Name Description 1 N/C No connection. May be connected to ground with no change in performance. 5 FEEDBACK LNA external gain control. Connect to RFOUT using a series RD network. 2 RFIN RF input. DC blocking capacitor required. 6 N/C No connection. May be connected to ground with no change in performance. 3 RFGND RF ground. Connect to ground through a capacitor. 7 RFOUT/VDD RF output. Apply VDD through RF choke inductor. DC blocking capacitor required. 4 VIN LNA supply current. Connect through series resistor to VDD. 8 N/C No connection. May be connected to ground with no change in performance. Table 2. SKY67100-396LF Absolute Maximum Ratings (Note 1) Maximum Units Supply voltage Parameter VDD Symbol 5.5 V Supply current IDD 100 mA RF input power PIN +22 dBm Storage temperature TSTG –65 +25 +125 C Operating temperature TA –40 +25 +85 C Junction temperature TJ +150 C Electrostatic discharge: ESD 1000 500 30 V V V Charged Device Model (CDM), Class 4 Human Body Model (HBM), Class 1B Machine Model (MM), Class A Minimum Typical Note 1: Exposure to maximum rating conditions for extended periods may reduce device reliability. There is no damage to device with only one parameter set at the limit and all other parameters set at or below their nominal value. Exceeding any of the limits listed here may result in permanent damage to the device. Thermal resistance = 80 C/W @ 4 V bias. CAUTION: Although this device is designed to be as robust as possible, Electrostatic Discharge (ESD) can damage this device. This device must be protected at all times from ESD. Static charges may easily produce potentials of several kilovolts on the human body or equipment, which can discharge without detection. Industry-standard ESD precautions should be used at all times. Electrical and Mechanical Specifications The absolute maximum ratings of the SKY67100-396LF are provided in Table 2. Electrical specifications are provided in Table 3. Typical performance characteristics of the SKY67100-396LF are illustrated in Figures 3 through 14. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 2 March 6, 2014 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201265I DATA SHEET • SKY67100-396LF HIGH LINEARITY, ACTIVE BIAS LNA Table 3. SKY67100-396LF Electrical Specifications (Note 1) (VDD = 4.0 V, IDD = 56 mA, TA = +25 C, PIN = –20 dBm, Characteristic Impedance [ZO] = 50 Ω, Thermal Resistance = 80 °C/W, Unless Otherwise Noted) Parameter Symbol Test Condition Min Typical Max Units 0.62 0.65 0.71 1.00 dB dB dB 18.3 18.0 17.6 19.3 19.0 18.6 dB dB dB RF Specifications Noise Figure (Note 2) NF @ 1.75 GHz @ 1.85 GHz @ 1.95 GHz Small signal gain |S21| @ 1.75 GHz @ 1.85 GHz @ 1.95 GHz Input return loss |S11| @ 1.75 GHz @ 1.85 GHz @ 1.95 GHz 30.4 25.3 20.6 dB dB dB Output return loss |S22| @ 1.75 GHz @ 1.85 GHz @ 1.95 GHz 11.6 12.4 12.7 dB dB dB Reverse isolation |S12| @ 1.75 GHz @ 1.85 GHz @ 1.95 GHz 43.0 43.1 43.3 dB dB dB 3rd Order Input Intercept Point IIP3 Δf = 5 MHz, PIN = –20 dBm/tone +15.7 +16.1 +16.4 dBm dBm dBm +34.0 +34.3 +34.0 dBm dBm dBm 17.3 17.0 16.6 @ 1.75 GHz @ 1.85 GHz @ 1.95 GHz 3rd Order Output Intercept Point OIP3 Δf = 5 MHz, PIN = –20 dBm/tone @ 1.75 GHz @ 1.85 GHz @ 1.95 GHz +32.5 1 dB Input Compression Point IP1dB @ 1.75 GHz @ 1.85 GHz @ 1.95 GHz +0.47 +0.65 +0.80 dBm dBm dBm 1 dB Output Compression Point OP1dB @ 1.75 GHz @ 1.85 GHz @ 1.95 GHz +18.7 +18.4 +18.4 dBm dBm dBm Stability u1, u2 Up to 18 GHz, –40 °C to +85 °C >1 – 4 V 56 mA DC Specifications Supply voltage VDD Supply current IDD Set with external resistor Note 1: Performance is guaranteed only under the conditions listed in this Table. Note 2 Loss from the input SMA connector and Evaluation Board up to component C1 has been de-embedded from the NF measurement. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201265I • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • March 6, 2014 3 DATA SHEET • SKY67100-396LF: HIGH LINEARITY, ACTIVE BIAS LNA Typical Performance Characteristics (VDD = 4.0 V, IDD = 56 mA, TA = +25 C, PIN = –20 dBm, Characteristic Impedance [ZO] = 50 Ω, Thermal Resistance = 80 °C/W, Unless Otherwise Noted) 20 +20 +25 °C +85 °C –40 °C 19 Small Signal Gain (dB) Small Signal Gain (dB) +10 0 –10 –20 –30 –40 –50 0 2 4 6 8 10 12 14 16 18 17 16 14 1.70 18 +25 °C +85 °C –40 °C 15 1.75 1.80 Frequency (GHz) 1.85 1.90 Figure 3. Broadband Gain Response vs Frequency 0 +25 °C +85 °C –40 °C –5 Input Return Loss (dB) Input Return Loss (dB) –5 –10 –15 +25 °C +85 °C –40 °C –20 0 2 4 6 8 10 12 14 16 –10 –15 –20 –25 –30 –35 1.70 18 1.75 1.80 Frequency (GHz) 0 –5 –10 –10 Reverse Isolation (dB) Reverse Isolation (dB) 0 –15 –20 –25 –30 –35 +25 °C +85 °C –40 °C –40 2 4 6 8 10 1.90 12 14 16 Frequency (GHz) Figure 7. Broadband Reverse Isolation vs Frequency 2.00 +25 °C +85 °C –40 °C –15 –20 –25 –30 –35 –40 –45 18 –50 1.70 1.75 1.80 1.85 1.90 1.95 2.00 Frequency (GHz) Figure 8. Narrowband Reverse Isolation vs Frequency Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 4 1.95 Figure 6. Narrowband Input Return Loss vs Frequency –5 0 1.85 Frequency (GHz) Figure 5. Broadband Input Return Loss vs Frequency –45 –50 2.00 Figure 4. Narrowband Gain Response vs Frequency 0 –25 1.95 Frequency (GHz) March 6, 2014 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201265I 0 0 –5 –2 Output Return Loss (dB) Output Return Loss (dB) DATA SHEET • SKY67100-396LF HIGH LINEARITY, ACTIVE BIAS LNA –10 –15 –20 –25 +25 °C +85 °C –40 °C –30 –35 0 2 4 6 8 10 12 14 +25 °C +85 °C –40 °C –4 –6 –8 –10 –12 –14 –16 –18 16 –20 1.70 18 1.75 1.80 Frequency (GHz) 1.0 +36.0 0.9 0.8 +35.5 0.7 +35.0 0.6 0.5 0.4 0.3 +25 °C +85 °C –40 °C 0.2 0.1 1.75 1.80 1.85 1.90 1.95 +34.0 +33.5 +33.0 1.75 2.00 1.80 1.85 4.5 4.0 3.5 3.0 4.0 3.5 3.0 u2 Stability u1 Stability 5.0 2.5 2.0 1.5 1.0 +25 °C +85 °C –40 °C 0.5 0 8 10 1.95 Figure 12. OIP3 vs Frequency (PIN = –20 dBm, Spacing = 5 MHz) 4.5 6 1.90 Frequency (GHz) 5.0 4 2.00 +34.5 Figure 11. Noise Figure vs Frequency 2 1.95 +25 °C +85 °C –40 °C Frequency (GHz) 0 1.90 Figure 10. Narrowband Output Return Loss vs Frequency OIP3 (dBm) Noise Figure (dB) Figure 9. Broadband Output Return Loss vs Frequency 0 1.70 1.85 Frequency (GHz) 12 14 Frequency (GHz) Figure 13. u1 Stability vs Frequency 16 2.5 2.0 1.5 1.0 +25 °C +85 °C –40 °C 0.5 0 18 0 2 4 6 8 10 12 14 16 18 Frequency (GHz) Figure 14. u2 Stability vs Frequency Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201265I • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • March 6, 2014 5 DATA SHEET • SKY67100-396LF: HIGH LINEARITY, ACTIVE BIAS LNA Evaluation Board Description Package and Handling Information The SKY67100-396LF Evaluation Board is used to test the performance of the SKY67100-396LF LNA. An assembly drawing for the Evaluation Board is shown in Figure 15. An Evaluation Board schematic diagram is provided in Figure 16. Table 4 provides the Bill of Materials (BOM) list for Evaluation Board components. Instructions on the shipping container label regarding exposure to moisture after the container seal is broken must be followed. Otherwise, problems related to moisture absorption may occur when the part is subjected to high temperature during solder assembly. The test board uses a 10 mil Rogers 4350B substrate on a 50 mil FR4 supporting substrate. The Rogers 4350B material was selected for the RF circuit because of its low dielectric constant (εr) and low εr variation over temperature for the best possible noise performance. Package Dimensions The SKY67100-396LF is rated to Moisture Sensitivity Level 1 (MSL1) at 260 C. It can be used for lead or lead-free soldering. For additional information, refer to the Skyworks Application Note, Solder Reflow Information, document number 200164. Care must be taken when attaching this product, whether it is done manually or in a production solder reflow environment. Production quantities of this product are shipped in a standard tape and reel format. The PCB layout footprint for the SKY67100-396LF is provided in Figure 17. Typical case markings are shown in Figure 18. Package dimensions for the 8-pin DFN are shown in Figure 19, and tape and reel dimensions are provided in Figure 20. Figure 15. SKY67100-396LF Evaluation Board Assembly Diagram Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 6 March 6, 2014 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201265I DATA SHEET • SKY67100-396LF HIGH LINEARITY, ACTIVE BIAS LNA C3 0.1 μF VDD C8 1000 pF R1 1200 Ω C6 1000 pF × C1 15 pF 1 2 RF Input L1 4.3 nH C2 9 pF 3 N/C N/C RFOUT/VDD RFIN RFGND N/C 4 FEEDBACK VIN 8 × L2 3.0 nH C5 22 pF 7 RF Output C4 2.2 pF 6 × 5 R2 220 Ω S1944 Figure 16. SKY67100-396LF Evaluation Board Schematic Table 4. SKY67100-396LF Evaluation Board Bill of Materials Component Value Size Manufacturer Mfr Part Number Comments C1 15 pF 0402 Murata GJM1555C1H150JB01 Capacitor C2 9 pF 0402 Murata GJM1555C1H9R0CB01 Capacitor C3 0.1 μF 0402 Murata GRM155F51C104ZA01E Capacitor C4 2.2 pF 0402 Murata GJM1555C1H2R2CB01 Capacitor C5 22 pF 0402 Murata GRM1555C1H220JZ01 Capacitor C6 1000 pF 0402 Murata GRM1555R71H102KA01 Capacitor C7 DNI – – – – C8 1000 pF 0402 Murata GRM155R71H102KA01 Capacitor L1 4.3 nH 0402 Coilcraft 0402CS-4N3X_L Inductor L2 3.0 nH 0402 TDK MLG1005S3N0S Inductor R1 1200 Ω 0402 Panasonic ERJ2GEJ122X Resistor R2 220 Ω 0402 Panasonic ERJ2RHD2200X Resistor Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201265I • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • March 6, 2014 7 DATA SHEET • SKY67100-396LF: HIGH LINEARITY, ACTIVE BIAS LNA 8X 0.70 8X 0.45 R0.20 Pin 1 8X 0.25 0.50 Pitch 2X 0.85 0.25 Exposed Solder Areas (Typical) 2X 0.45 All dimensions are in millimeters S1413 Figure 17. SKY67100-396LF PCB Layout Footprint (Top View) Pin 1 Indicator Skyworks Part # Figure 18. Typical Case Markings (Top View) Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 8 March 6, 2014 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201265I DATA SHEET • SKY67100-396LF HIGH LINEARITY, ACTIVE BIAS LNA 0.90 +0.10/–0.15 C 2 0.20 Ref Seating Plane A B 0.45 +0.05/–0.07 Exposed Pad Detail A 0.02 +0.03/–0.02 Pin 1 Indicator -B- 2 0.15 C 2X 8X 3 0.08 C Detail C 0.75 ±0.05 0.15 C 2X 1.70 +0.10/–0.15 0.85 +0.05/–0.07 Detail B 2 Places 0.10 C Top View Side View Bottom View R0.12 Typ 0.25 0.30 ± 0.10 -A- CL R0.20 0.5 0.25 +0.05/–0.07 5 0.10 M C A B 0.05 M C Detail C 8 Places Detail B Detail A All measurements are in millimeters. Dimensioning and tolerancing according to ASME Y14.5M-1994. Coplanarity applies to the exposed heat sink slug as well as the terminals.. Plating requirement per source control drawing (SCD) 2504. Dimension applies to metalized terminal and is measured between 0.15 mm and 0.30 mm from terminal tip. S1945 Figure 19. SKY67100-396LF 8-Pin DFN Package Dimensions Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201265I • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • March 6, 2014 9 DATA SHEET • SKY67100-396LF: HIGH LINEARITY, ACTIVE BIAS LNA ∅1.50+ 0.10/–0.00 0.30 ± 0.05 (T) Pin #1 4.00 ± 0.10 2.00 ± 0.05 4.00 (see Note 4) 1.75 ± 0.10 2.30 (Bo) A B 1.00 (Ko) 2.30 (Ao) 8.00 +0.30/–0.10 A 3.50 ± 0.05 B ∅1.00 Min. R0.30 Typ. B Notes: 1. Carrier tape: black conductive polystyrene. 2. Cover tape material: transparent conductive HSA. 3. Cover tape size: 5.40 mm width. 4. Ten sprocket hole pitch cumulative tolerance = ±0.20 mm. 5. ESD surface resistivity is ≤1 x 108 Ohms/square per EIA, JEDEC tape and reel specification. 6. Ao and Bo measurement point to be 0.30 mm from bottom pocket. 7. All measurements are in millimeters. A Figure 20. SKY67100-396LF Tape and Reel Dimensions Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 10 March 6, 2014 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201265I S1601 DATA SHEET • SKY67100-396LF HIGH LINEARITY, ACTIVE BIAS LNA Ordering Information Model Name SKY67100-396LF LNA Manufacturing Part Number SKY67100-396LF Evaluation Board Part Number SKY67100-396LF-EVB Copyright © 2010-2012, 2014 Skyworks Solutions, Inc. All Rights Reserved. Information in this document is provided in connection with Skyworks Solutions, Inc. (“Skyworks”) products or services. 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Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201265I • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • March 6, 2014 11